Analysis of the influence of tool type, coatings, and machinability on the thermal fields in orthogonal machining of AISI 4140 steels

被引:40
作者
Arrazola, P. J. [1 ]
Arriola, I. [1 ,2 ]
Davies, M. A. [3 ]
机构
[1] Mondragon Univ, Fac Engn, Mfg Dept, Arrasate Mondragon 20500, Guipuzcoa, Spain
[2] Margune Ctr, Eibar, Spain
[3] Univ N Carolina, Dept Mech Engn & Engn Sci, Ctr Precis Metrol, Charlotte, NC 28223 USA
关键词
Energy balance; Machinability; Temperature; TEMPERATURE; SIMULATION;
D O I
10.1016/j.cirp.2009.03.085
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Micro-thermal imaging was used to determine the amount of heat flowing into the tool, chip and workpiece during orthogonal Cutting at speeds Lip to 400 m min(-1). Two AISI 4140 steels with different machinability ratings and three types of tools were compared: (i) uncoated with 0 degrees rake angle, (ii) coated with -6 degrees rake angle and (iii) coated with chip breaker. A control volume approach was used to estimate the energy partition from thermal images and energy outflow was compared to direct measurement of the cutting power. This provides a new physical tool for examining machinability, tool wear and subsurface damage. (C) 2009 CIRP.
引用
收藏
页码:85 / 88
页数:4
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